Draft Tube Maintenance Platform - Vertical Hydro-Turbine
Draft Tube Maintenance Platform - Vertical Hydro-Turbine
(OP)
Is anyone aware of a procedure and/or design for installing maintenance platforms in the draft tubes of vertical hydro-turbines?
In one of our facilities we "float the boat". Which entails raising the water in the draft tube to just below the man-door and a maintenance person on a makeshift raft bolting the platform brackets to the wall. Obviously, not the ideal way to perform this work.
I am curious to know if there are any designs and/or procedures for installation that keep personnel safe during the process. Or what other utilities are using in their units.
Thanks in advance.
In one of our facilities we "float the boat". Which entails raising the water in the draft tube to just below the man-door and a maintenance person on a makeshift raft bolting the platform brackets to the wall. Obviously, not the ideal way to perform this work.
I am curious to know if there are any designs and/or procedures for installation that keep personnel safe during the process. Or what other utilities are using in their units.
Thanks in advance.





RE: Draft Tube Maintenance Platform - Vertical Hydro-Turbine
I do not believe it. Have you asked to the turbine manufacturer the reason why, this important maintenance accessory is missing? Normally, this type of ancilliary equipment is included in the scope of supply.
I think that the turbine manufacturer is obliged to give a solution to this problem.
RE: Draft Tube Maintenance Platform - Vertical Hydro-Turbine
I just want to know what procedures or guidelines other hydro-utilities use when working from a platform in the draft tube.